At what age in life did you (and your spouse) achieve a net worth equal to that of your household income?

Assuming current income, I hit that when I was 26. I'm 30 now and have been able to stay above that mark.

This formula would be more useful if it could incorporate age somehow. TMND's formula of (age / 10) x annual income for determining wealth accumulation has age in it, but is flawed at the early and late stages of a working life.